Check-valve for sewers.



F. CLEMENS, JR.

CHEGK VALVE FOR SEWERS.

APPLICATION FILED DEG.1G,190B.

@%%,6% Patented May 18, 1909. I 2 sHEETE-EHEET l.

F. CLEMENS, In. CHECK VALVE FOB SEWBRS. APPLICATION FILED DEO.16,1908.

9 0M 93 1B 00 1 VJ n Mn 8 d2 9 t H 6 b a D1 5141mm l'oz Wiiweooeo 'tional view on the line 4-l of Fig. 1.

FRANK CLEMENS, JR., OF GRESTLINE, OHIO.

CHECK-VALVE FOR SEWERS.

Specification of Letters Patent.

Patented May 18, 1909.

Application filed December 16, 1808. Serial No. 461 756.

To all whom. i may concern:

lie it known that I, FRANK CLEMENS, J r., a citizen of the United States, residing at Crestline, in the county of Crawford and State of Ohio, have invented certain new and useful Improvements in Check-Valves for Sewers, of which the following is a specification.

The present invention relates to means for permitting the flow of water and material in one direction through a ing back flow.

The primary object of the present invention is to provide an exceedingly simple butt-horoughly practical structure, which can be readily placed iii a sewer pipe, and while permitting the free flow of sewage or other material in one direction-through the pipe, will entirely prohibit any back flow.

The preferred form of construction is illustrated in the accompanying drawings, wherein 1 Figure 1 is a longitudinal sectional view through a portion of a sewer, showing the valve in place therein. Fig. 2 is a cross sectional View substantially on the line 2-2 of Fig. 1. Fig. 3 is a sectional view on the line 33 of Fig. 2. Fig. 4 is a cross sec- Fi 5 is an enlarged detail horizontal sectionii l view through the body. Fig. 6 is a detail view on an enlarged scale of one of the valve bearings. Fig. 7 is a detail sectional view substantially on the line 77 of Fig. 6.

Similar reference numerals designate corresponding parts in all the figures of the drawings.

As shown more particularly in Figs. 1, 2 and 3, the device is intended to be inserted in a sewer at the juncture of two of the pipes, said pipes being designated by the reference numeral 8, and 9 that receives the adjacent end of the other. e device consists of a body 10 of metal or other material that will not corrode, rust or be otherwise injuriously afi'ected by liquids or gases. This body is circular in cross section so that it will fit snugl within the end of the pipe having the bell: in which it is preferably secured by cement or .other means. This body furthermore has at one end an outstandin circular flange 11 that fits snugly wit in the bell 9, and is abutted sewer, but preventone having a bell' construction,

out 'urther description,

against by the end of the adjacent pipe, as shown. The said body has a circular passageway 12 therethrough that is disposed eccentrically, and cuts through the bottom of th. body, as will be clear by reference to Figs. 4 and 5. This open bottom 13 is, however, closed by the bottom of the pipe. In other words, the bottom of the passageway is formed by the bottom of the pipe, as will be evident.

Projecting from the rear or inner end of the body is a pair of hooks 14, which, as shown more particularly in Fig. 7, have the upper portions of their shanks 15 upwardly tapered to produce bearing edges 16 A check valve 17, preferably a comparatively thin plate, is provided with an upstanding portion 18 that is sli htly offset and has oppositely extending pintles 19 that are engaged in the hooks. As shown in Fig. 6 the pintles have their lower portions tapered to produce bearing edges 20, which rest upon the bearing edges 16. With this construction, it will be evident that sewage or other material can flow freely through the ipes in one direction, but all back flow w1l be prohibited, as the valve will close against the inner end of the body and prevent the retrograde flow of material through the passageway. The adjacent faces 0 the body and valve are made perfectly true in order that no back leakage can take place.

There are a number of decided advantages for the structure. In the first place. it can be readily placed in position, as will be evident. Furthermore it will constitute no serious obstruction to the flow of comparatively heavy material, inasmuch as there is no shoulder or projection upon the bottom of the sewer, the cut-away portion 13 of the body exposing the bottom of the pipe. The particular type of bearing is also advantageous, in that it makes the valve very sensitive in action. Finally it will be obvious that the device can be cheaply manufactured. I

From the foregoing, it is thought that the operation and many advantages of the herein described invention will be a parent to those skilled in the art, withand it will be understood that various changes in the size, shape, proportlon and minor details of construe tion may be resorted to without departing from the spirit or sacrificing any'of the advantages of the invention.

Having thus fully described my inven- 1 side of said hook and said body also having a passageway there a bearing thereon,

and havlng the under side of the tion, what I claim as new, and desire to sebearing being oppositely tapered and discure by Letters Patent, is

1. A device of the character described,

comprising a body having a portion arranged to fit withln a pipe and having a passageway therethrough, the passageway opening through the bottom of the portion of the body that fits within the pipe, said passage way thus having for a bot-tomthe under side of 'said pipe, and a check valve mounted on the body and controlling the flow of material through the'passageway.

2. A device of the character described, comprising a circular body arranged to be fitted within a pipe and having a passageway extending through said body from end to end a nd opening through the bottom, the bottom of the pipe thus constituting the bottom of said passageway, said body having an outstanding flange at one end that completely. surrounds the passageway and is arranged to be placed between adjacent pipes,

and a check valve pivotally hung from the other end and normally extending across the passageway.

3. A device of the character described, comprising a body arranged to be fitted within a pipe and having an outstanding pivot hook on the upper portions of one end,

posed in angular relation to produce engag ing bearing edges.

4. A device of the character described, comprising a circular body arranged to be fitted within a pipe and having an eccentrio-ally disposed passageway therethrough, said passa eway opening through the bottom of tlie ody, the bottom of the pipe constituting-the bottom ofthe passageway, an outstanding flange carried. by one end of the body and being arranged to fit between the ends of adjacent pipes, outstanding hooks projecting from the other end of the body and having their shanks tapered upwardly to provide bearing edges, and a check valve having oppositely extending pintles that engage the hooks, said pintles having their lower portions tapered to produce bearing edges, which are disposed at right angles to and rest against the bearing edges of the shanks and said valve normally closing the passageway.

In testimony whereof Ihereunto atfix my signature in the lpresence of two witnesses.

Witnesses v M. A. FLYNN, SAMUEL EASTERDAY.

RANK CLEMENS, JR. 

